nsaids, like celebrex, increase the chance of serious skin or allergiceactions or stomach and intestine problems, such as bleeding and ulcers, which can occur without warning and may cause death. patients also taking aspirin and the elderly are at increased risk for stomach bleeding and ulcers. don't take celebrex if you have bleeding in the stomach or intestine, or had an asthma attack, hives, other allgies to aspirin, nsaids or sulfonamides. get help right away if you have sweing of the face or throat, or trouble breathing. tell your doctor your medical history. and find an arthritis treatment r you. visit celebrex.com and ask your doctor about celebrex. for a body in motion.